JPS562111A - Form releasing method of and apparatus for prestressed concrete members molded on long bench - Google Patents
Form releasing method of and apparatus for prestressed concrete members molded on long benchInfo
- Publication number
- JPS562111A JPS562111A JP7725080A JP7725080A JPS562111A JP S562111 A JPS562111 A JP S562111A JP 7725080 A JP7725080 A JP 7725080A JP 7725080 A JP7725080 A JP 7725080A JP S562111 A JPS562111 A JP S562111A
- Authority
- JP
- Japan
- Prior art keywords
- prestressed concrete
- concrete members
- releasing method
- reinforcements
- members molded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/06—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed for the production of elongated articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A device for removing from their moulds elements made of pre-stressed concrete employing stretched adherent reinforcements on a "long bed" and passing through at least one row of moulds of said elements, wherein, prior to the release of the tension of the reinforcements, each of the elements is detached from its mould by an upward thrust exerted on at least one movable portion of the bottom of this mould, then maintained in lifted position until the tension is released and these reinforcements are cut.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7915131A FR2458368A1 (en) | 1979-06-13 | 1979-06-13 | METHOD AND DEVICE FOR DEMOLISHING PRECONTRATED CONCRETE ELEMENTS MOLDED ON A LONG BENCH |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS562111A true JPS562111A (en) | 1981-01-10 |
JPS5820771B2 JPS5820771B2 (en) | 1983-04-25 |
Family
ID=9226547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55077250A Expired JPS5820771B2 (en) | 1979-06-13 | 1980-06-10 | Method and device for demolding prestressed concrete members molded on a long bench |
Country Status (10)
Country | Link |
---|---|
US (1) | US4330243A (en) |
EP (1) | EP0021905B1 (en) |
JP (1) | JPS5820771B2 (en) |
AT (1) | ATE3191T1 (en) |
BR (1) | BR8003667A (en) |
CA (1) | CA1160819A (en) |
DE (1) | DE3062952D1 (en) |
ES (1) | ES492251A0 (en) |
FR (1) | FR2458368A1 (en) |
IN (1) | IN154503B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2604944B1 (en) * | 1986-10-01 | 1990-08-10 | Costamagna & Cie B M | IMPROVED DEVICE FOR RELEASING AND HANDLING CONCRETE PRODUCTS MOLDED IN FIXED MOLDS |
JPS6438356U (en) * | 1987-08-31 | 1989-03-07 | ||
BE1004584A3 (en) * | 1990-08-29 | 1992-12-15 | Coussee Marc | Method and device for producing t-shaped beams from pre-stressed concrete |
NL9002531A (en) * | 1990-11-20 | 1992-06-16 | Schokbeton Bv | Apparatus for the production of prestressed concrete sleepers for railway tracks, as well as sleepers manufactured using this apparatus. |
CZ2011732A3 (en) * | 2011-11-15 | 2013-05-22 | Active Optix S.R.O. | Process for producing products of geopolymeric composite |
CN116876905B (en) * | 2023-07-10 | 2024-02-23 | 广东永基电力器材厂有限公司 | Steel plate composite type concrete electric pole and preparation method thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB726370A (en) * | 1953-06-17 | 1955-03-16 | Eugen Schulz | Improvements in or relating to the manufacture of concrete bodies |
US3611518A (en) * | 1969-10-30 | 1971-10-12 | American Concrete Crosstie Co | Apparatus for removing cured concrete articles from pallets |
US4102957A (en) * | 1975-11-20 | 1978-07-25 | Canfarge Ltd (Francon Division) | Apparatus and method for manufacturing prestressed concrete railway ties |
FR2434693A2 (en) * | 1977-03-28 | 1980-03-28 | Costamagna & Cie B M | Prestressing bed for precast concrete beams - has mould with fixed slotted end forms and pistons to assist striking |
FR2385510A1 (en) * | 1977-03-28 | 1978-10-27 | Costamagna & Cie B M | IMPROVEMENTS IN THE MANUFACTURING OF PRE-STRESSED PRODUCTS |
SE408535B (en) * | 1977-04-29 | 1979-06-18 | A Betong Ab | SET THAT IN A LONG FORMBED MANUFACTURE SEVERAL ONE OF THE FOLLOWING BUILDING ELEMENTS AND FORMBED FOR EXECUTION OF THE SET |
FR2403431A1 (en) * | 1977-09-14 | 1979-04-13 | Costamagna & Cie B M | Prestressed concrete reinforced T=shaped girder - consists of shoulder and web, in side of which are notches for facilitating removal from mould |
BE877734R (en) * | 1978-08-31 | 1979-11-16 | Costamagna & Cie B M | IMPROVEMENTS IN THE MANUFACTURING OF PRE-STRESSED PRODUCTS |
-
1979
- 1979-06-13 FR FR7915131A patent/FR2458368A1/en active Granted
-
1980
- 1980-06-03 IN IN404/DEL/80A patent/IN154503B/en unknown
- 1980-06-03 EP EP80400783A patent/EP0021905B1/en not_active Expired
- 1980-06-03 DE DE8080400783T patent/DE3062952D1/en not_active Expired
- 1980-06-03 AT AT80400783T patent/ATE3191T1/en active
- 1980-06-06 US US06/157,214 patent/US4330243A/en not_active Expired - Lifetime
- 1980-06-09 ES ES492251A patent/ES492251A0/en active Granted
- 1980-06-10 JP JP55077250A patent/JPS5820771B2/en not_active Expired
- 1980-06-12 BR BR8003667A patent/BR8003667A/en not_active IP Right Cessation
- 1980-06-13 CA CA000353995A patent/CA1160819A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IN154503B (en) | 1984-11-03 |
JPS5820771B2 (en) | 1983-04-25 |
EP0021905A1 (en) | 1981-01-07 |
BR8003667A (en) | 1981-01-13 |
US4330243A (en) | 1982-05-18 |
FR2458368B1 (en) | 1982-10-22 |
ES8101456A1 (en) | 1980-12-16 |
DE3062952D1 (en) | 1983-06-09 |
EP0021905B1 (en) | 1983-05-04 |
ATE3191T1 (en) | 1983-05-15 |
CA1160819A (en) | 1984-01-24 |
FR2458368A1 (en) | 1981-01-02 |
ES492251A0 (en) | 1980-12-16 |
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